Results 41 to 50 of about 3,690 (172)

A Chemical Probe for Increasing Leaf Tocopherol Levels by Coordinated Modulation of Biosynthesis, Competition and Storage

Plant Biotechnology Journal, EarlyView.
ABSTRACT Plant biofortification with phytonutrients typically relies on metabolic engineering strategies known as ‘push’ (enhancing biosynthetic flux), ‘block’ (inhibiting competing pathways) and ‘pull’ (promoting metabolite storage). Here, we describe a novel synthetic compound, X57, that simultaneously targets biosynthesis, competition and storage to
Pablo Perez‐Colao, Gaetan Glauser, Jacobo Cruces, Jorge Lozano‐Juste, Manuel Rodriguez‐Concepcion   +4 more
wiley   +1 more source

Stable isotope dilution techniques for assessing vitamin A status and bioefficacy of provitamin A carotenoids in humans [PDF]

Public Health Nutrition, 2005
AbstractVitamin A deficiency is a major global public health problem. Among the variety of techniques that are available for assessing human vitamin A status, evaluating the provitamin A nutritional values of foodstuffs and estimating human vitamin A requirements, isotope dilution provides the most accurate estimates.
Furr, Harold C, Green, Michael H, Haskell, Marjorie, Mokhtar, Najat, Nestel, Penelope, Newton, Sam, Ribaya-Mercado, Judy D, Tang, Guangwen, Tanumihardjo, Sherry, Wasantwisut, Emorn   +9 more
openaire   +3 more sources

Mapping molluscan endocrinology: a systematic and critical appraisal

Biological Reviews, Volume 101, Issue 2, Page 970-1002, April 2026.
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Konstantinos Panagiotidis, Thomas H. Miller, Olwenn V. Martin, Alice Baynes   +3 more
wiley   +1 more source

Safety and efficacy of vitamin B2 (riboflavin 5′‐phosphate ester monosodium salt) for all animal species when used in water for drinking

EFSA Journal, 2018
Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on vitamin B2 in the form of riboflavin 5′‐phosphate ester monosodium salt as an ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Maryline Kouba, Mojca Kos Durjava, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Yolanda Sanz, Roberto Edoardo Villa, Ruud Woutersen, Lucio Costa, Noël Dierick, Gerhard Flachowsky, Alberto Mantovani, Robert John Wallace, Paola Manini, Jordi Tarres‐Call   +24 more
doaj   +1 more source

Combining ability among provitamin A‐enriched maize inbred lines and heterosis of their hybrids for grain yield and agronomic traits

Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Studying the combining ability of pro‐vitamin A enriched yellow maize inbred lines (Zea mays L.) provides valuable information on the breeding potential of these lines for developing high‐yielding and biofortified maize hybrids with desirable agronomic traits.
Belay Garoma, Kassahun Bante, Girum Azmach, Abebe Menkir   +3 more
wiley   +1 more source

The effects of preformed vitamin A and provitamin A carotenoid supplementation on tadpoles of the poison frog Phyllobates vittatus

Zoo Biology, 2023
AbstractUnderstanding the nutritional requirements of captive animals is necessary for proper animal husbandry, however, the specific dietary requirements for many amphibian species commonly kept in captivity are unknown. Like most vertebrates, frogs cannot synthesize carotenoids and must therefore obtain these essential nutrients through diet.
Rachel Arkin, Roberto Márquez
openaire   +2 more sources

The progressive modernization of cassava breeding programs at International Institute of Tropical Agriculture and future prospects

Crop Science, Volume 66, Issue 2, March/April 2026.
Abstract Modernizing cassava breeding programs (CBPs) is critical to increase genetic gain, close the yield gap, and ensure food availability, accessibility, and affordability to support livelihood transformation and economic development in sub‐Saharan Africa (SSA).
Edwige Gaby Nkouaya Mbanjo, Afolabi Agbona, John Derera, Alick Mulenga, Ibnou Dieng, Béla Teeken, Hapson Mushoriwa, Jim Lorenzen, Chiedozie Egesi, Peter Kulakow, Ismail Yusuf Rabbi   +10 more
wiley   +1 more source

Mechanisms of provitamin A (carotenoid) and vitamin A (retinol) transport into and out of intestinal Caco-2 cells [PDF]

Journal of Lipid Research, 2007
The purpose of this study was to compare the mechanisms of intestinal retinol (ROL) and carotenoid transport. When differentiated Caco-2 cells were incubated with ROL for varying times, cellular ROL plateaued within 2 h, whereas retinyl ester (RE) formation increased continuously.
Alexandrine During, Earl H. Harrison
openaire   +3 more sources

Obesity and Natural Products: Mechanisms, Therapeutic Potential, and Future Directions

Food Science &Nutrition, Volume 14, Issue 3, March 2026.
Natural products such as EGCG, berberine, curcumin, and capsaicin modulate key metabolic pathways including AMPK activation, adipogenesis inhibition, and inflammatory signaling. While clinical trials demonstrate modest benefits on body weight and metabolic parameters, translational challenges related to bioavailability, dose feasibility, and regulatory
Ohoud M. Marie, Abdelghafar Abu‐Elsaoud   +1 more
wiley   +1 more source

Physicochemical, Functional, Sensory Properties and Willingness to Consume Porridge Made From Composite Flours of Maize, Soybean, and Ripe Plantain

Food Science &Nutrition, Volume 14, Issue 3, March 2026.
This study aims to enhance the nutritional quality of maize porridge, a popular meal in many developing countries, by adding soybean and ripe plantain flours which are rich in protein and β‐carotene, respectively. The addition of soybean and ripe plantain to form composite flour did not affect water binding, swelling power, and viscosity compared to ...
Gifty Serwaa Otoo, Nazir Kizzie‐Hayford, Rosemond Godbless Dadzie, Salifu Seidu‐Larry, Claudia Asantewaa Gyimah, Vivianne Geraldo, Sandra Ama Kaburi, Francis Padi Lamptey, Isaaca Adade, Jerry Ampofo‐Asiama   +9 more
wiley   +1 more source